Squares which are the sum of factorials of distinct integers (probably finite).
A025494
Squares which are the sum of factorials of distinct integers (probably finite).
Terms
- a(0) =1a(1) =4a(2) =9a(3) =25a(4) =121a(5) =144a(6) =729a(7) =841a(8) =5041a(9) =5184a(10) =45369a(11) =46225a(12) =363609a(13) =403225a(14) =3674889
External references
- oeis: A025494